... .new developed model 4.OEM made,welcome customized log folding bike BABY TOYS, CHILD BIKE, KIDS BIKE, CHILDREN BICYCLE, KIDS BICYCLE, BMX BICYCLE, TOY ... and stem: CP, argon-arc welding Φ22X0.8-1.2mm 6. Tyre: Air tyre12"x1.75, 16"x1.75, 20”x1 ... to 43 cm) 14"-17"(1.00m - 1.25m) 3'6" - 4'2"14"3-4years(40 to 50 cm) 16 ... 63.5 cm) 22"-25" (1.35m - 1.57m) 4'6" - 5'2"d20"9+years(65 cm +) 26" +5" 5 ...